Ahem, no, with "BB" I had meant "Bravery Bonus", sorry. I should have been more clear about that.
This abbreviation is common in the DDO forums.
And I don't remember anymore when I had aquired it, that's it.

— “ Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius – and a lot of courage – to move in the opposite direction.“ (E.F.Schumacher, Economist, Source)